April
In a video address, special guest 42nd President of the United States William J. Clinton looked back fondly on his participation in C40 over the years and congratulated the organization on becoming the preeminent network of cities working to address climate change.

May
This month we featured a video message from World Resources Institute President & CEO Andrew Steer, who wished C40 a ‘Happy Birthday’ and reflected upon the impact C40 has had over the last ten years.

June
In 2015, C40 continued to expand its reach through our social media channels, where we post the most important news about cities and climate change. To honour another successful year on Twitter (a big ‘thank you’ to our more than 29,000 followers!), we shared 10 of our favourite Twitter handles to follow. Don’t forget to join the conversation and follow @c40cities and the hashtag #ycities for updates.

July
We featured a guest post from UNFCCC Executive Secretary Christiana Figueres, who applauded C40 for ten years of excellent work, discussed some of the co-benefits of climate action already experienced across the world, and called for the scaling up of climate action.

We also featured a video message from the UN Secretary-General’s Special Envoy for Cities and Climate Change Michael R. Bloomberg, who discussed the importance of cities and city leaders in tackling climate change and congratulated C40 on 10 years of results.

2015 has been an incredible year for C40. Thank you to those who contributed and congratulated – we’re looking forward to another exciting year following the successful COP in Paris, and to another ten years of helping to make cities healthier, wealthier and more sustainable places to live for urban citizens everywhere.